[6.6 HelpHub]: Styles overview

[jennydupuy]

Article: https://wordpress.org/documentation/article/styles-overview/

Update for 6.6

• Add color and typography presets to Global Styles 56622
• Change "Solid" tab to "Color" 61366 (Update texte + screenshot)
• Improve panel title and description for palette 61365?
• Tweak palette panel spacing and empty message 61368
• Global styles: background UI controls 59454 (Editor > Styles > Layout > Background image) + 61886
• Edit/create shadows in global styles 60706

General

• Make sure all screenshots are relevant to the latest version
• Make sure videos, if any, are up to date
• Add ALT tags for the images
• Make sure the headings are in sentence case
• Convert all reusable blocks to a ‘regular block’.
• Update the changelog at the end of the article

Notes

1. We are not adding detailed updates for the Block settings - Typography, Color, Layout, Dimension and Border and for the More Options setting in the block toolbar. Pls mention the settings included for the block and link to the detailed settings pages instead.
2. Some of the PRs have great videos that can be added to the article.

[github-actions]

Heads up @WordPress/docs-issues-coordinators, we have a new issue open. Time to use 'em labels.